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305676 = 223271213
BaseRepresentation
bin1001010101000001100
3120112022100
41022220030
534240201
610315100
72412120
oct1125014
9515270
10305676
11199728
12128a90
13a9197
147d580
1560886
hex4aa0c

305676 has 36 divisors (see below), whose sum is σ = 883792. Its totient is φ = 87264.

The previous prime is 305663. The next prime is 305717. The reversal of 305676 is 676503.

305676 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

305676 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 355 + ... + 858.

2305676 is an apocalyptic number.

305676 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

305676 is an abundant number, since it is smaller than the sum of its proper divisors (578116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

305676 is a wasteful number, since it uses less digits than its factorization.

305676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1230 (or 1225 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 305676 is about 552.8797337577. The cubic root of 305676 is about 67.3628490886.

The spelling of 305676 in words is "three hundred five thousand, six hundred seventy-six".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 252 1213 2426 3639 4852 7278 8491 10917 14556 16982 21834 25473 33964 43668 50946 76419 101892 152838 305676